Largemouth blenny
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Perciformes
- family: Labrisomidae
- genus: Labrisomus
- species: Labrisomus xanti
- Mulegé
Baja California- Cabo San Lucas
- La Paz
Baja California Sur- Acapulco
Guerrero- San Blas
Nayarit- Topolobampo
Sinaloa- Guaymas
- La Libertad
- Puerto Peñasco
Sonora
Mexico